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AXODE 1999/UP
Sunfire 1995-2005
GRAND CARNIVAL 2004-2010 5 SP FWD V6 3
long-lasting seal
Cutlass Supreme 1994-1997
boost valve kit sonnax 4r44e 4r55e 5r44e 5r55e Transmission_A4BF3 AXODE 1999/UPBoost Valve Kit 4R44E, 4R55E, 5R44E, 5R55E From Sonnax Ford 4R44E, 4R55E, 5R44E, and 5R55E units are often plagued by issues such as soft shifts, delayed Reverse, poor modulator control, and or low line pressure in Reverse. A worn boost valve is a frequent culprit, allowing Reverse and or TV pressure to cross leak or exhaust. Sonnax provides two tailored replacement boost valve kits for these units: the OE ratio boost valve kit 37947 01K and the
